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2G22

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ID = 4255
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Raytheon Mfg. Co.; Cambridge, MA 
Tube type:  Triode-Heptode   Frequency converter   Controlling (mu) 
Identical to 2G22 = CK555AY
Similar Tubes
Normally replaceable-slightly different:
  CK555AX
Other base:
  2G21
First Source (s)
10.Nov.1945 : Electron Tube Registration List rec. 450
Base Subminiatur (wire-ends, flat) B5A
Was used by Radio/TV-reception etc.
Filament Vf 1.25 Volts / If 0.05 Ampere / Direct / Battery =
Description Subminiature frequency converter intended for operation in battery operated sets. Supply voltage from 22.5 to 45 volts.
Similar to 2G21 but leads cut to plug in a socket. 
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
2g22_umgeb1.gif
2G22: G.S.(nach Belmont Boulevard)
Günther Stabe † 19.8.20
2g21_s~~1.gif 2G22: Mazda Datasheet
Günther Stabe † 19.8.20
More ...
Just Qvigstad 		2g22_2.png
2G22: Manufacturer's Literature
Emilio Ciardiello
Usage in Models 1= 1945 ; 2= 1948??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of

John Albion (CDN)
 
2g22pix.jpg

 
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